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<h2><a href="local_closure_goog_json_hybrid.js.html">hybrid.js</a></h2>

<pre class="prettyprint lang-js">
<a name="line1"></a>// Copyright 2013 The Closure Library Authors. All Rights Reserved.
<a name="line2"></a>//
<a name="line3"></a>// Licensed under the Apache License, Version 2.0 (the &quot;License&quot;);
<a name="line4"></a>// you may not use this file except in compliance with the License.
<a name="line5"></a>// You may obtain a copy of the License at
<a name="line6"></a>//
<a name="line7"></a>//      http://www.apache.org/licenses/LICENSE-2.0
<a name="line8"></a>//
<a name="line9"></a>// Unless required by applicable law or agreed to in writing, software
<a name="line10"></a>// distributed under the License is distributed on an &quot;AS-IS&quot; BASIS,
<a name="line11"></a>// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
<a name="line12"></a>// See the License for the specific language governing permissions and
<a name="line13"></a>// limitations under the License.
<a name="line14"></a>
<a name="line15"></a>
<a name="line16"></a>/**
<a name="line17"></a> * @fileoverview Utility to attempt native JSON processing, falling back to
<a name="line18"></a> *     goog.json if not available.
<a name="line19"></a> *
<a name="line20"></a> *     This is intended as a drop-in for current users of goog.json who want
<a name="line21"></a> *     to take advantage of native JSON if present.
<a name="line22"></a> *
<a name="line23"></a> * @author nnaze@google.com (Nathan Naze)
<a name="line24"></a> */
<a name="line25"></a>
<a name="line26"></a>goog.provide(&#39;goog.json.hybrid&#39;);
<a name="line27"></a>
<a name="line28"></a>goog.require(&#39;goog.asserts&#39;);
<a name="line29"></a>goog.require(&#39;goog.json&#39;);
<a name="line30"></a>
<a name="line31"></a>
<a name="line32"></a>/**
<a name="line33"></a> * Attempts to serialize the JSON string natively, falling back to
<a name="line34"></a> * {@code goog.json.serialize} if unsuccessful.
<a name="line35"></a> * @param {!Object} obj JavaScript object to serialize to JSON.
<a name="line36"></a> * @return {string} Resulting JSON string.
<a name="line37"></a> */
<a name="line38"></a>goog.json.hybrid.stringify = function(obj) {
<a name="line39"></a>  if (goog.global.JSON) {
<a name="line40"></a>    try {
<a name="line41"></a>      return goog.global.JSON.stringify(obj);
<a name="line42"></a>    } catch (e) {
<a name="line43"></a>      // Native serialization failed.  Fall through to retry with
<a name="line44"></a>      // goog.json.serialize.
<a name="line45"></a>    }
<a name="line46"></a>  }
<a name="line47"></a>
<a name="line48"></a>  return goog.json.serialize(obj);
<a name="line49"></a>};
<a name="line50"></a>
<a name="line51"></a>
<a name="line52"></a>/**
<a name="line53"></a> * Attempts to parse the JSON string natively, falling back to
<a name="line54"></a> * the supplied {@code fallbackParser} if unsuccessful.
<a name="line55"></a> * @param {string} jsonString JSON string to parse.
<a name="line56"></a> * @param {function(string):Object} fallbackParser Fallback JSON parser used
<a name="line57"></a> *     if native
<a name="line58"></a> * @return {!Object} Resulting JSON object.
<a name="line59"></a> * @private
<a name="line60"></a> */
<a name="line61"></a>goog.json.hybrid.parse_ = function(jsonString, fallbackParser) {
<a name="line62"></a>  if (goog.global.JSON) {
<a name="line63"></a>    try {
<a name="line64"></a>      var obj = goog.global.JSON.parse(jsonString);
<a name="line65"></a>      goog.asserts.assertObject(obj);
<a name="line66"></a>      return obj;
<a name="line67"></a>    } catch (e) {
<a name="line68"></a>      // Native parse failed.  Fall through to retry with goog.json.unsafeParse.
<a name="line69"></a>    }
<a name="line70"></a>  }
<a name="line71"></a>
<a name="line72"></a>  var obj = fallbackParser(jsonString);
<a name="line73"></a>  goog.asserts.assert(obj);
<a name="line74"></a>  return obj;
<a name="line75"></a>};
<a name="line76"></a>
<a name="line77"></a>
<a name="line78"></a>/**
<a name="line79"></a> * Attempts to parse the JSON string natively, falling back to
<a name="line80"></a> * {@code goog.json.parse} if unsuccessful.
<a name="line81"></a> * @param {string} jsonString JSON string to parse.
<a name="line82"></a> * @return {!Object} Resulting JSON object.
<a name="line83"></a> */
<a name="line84"></a>goog.json.hybrid.parse = function(jsonString) {
<a name="line85"></a>  return goog.json.hybrid.parse_(jsonString, goog.json.parse);
<a name="line86"></a>};
<a name="line87"></a>
<a name="line88"></a>
<a name="line89"></a>/**
<a name="line90"></a> * Attempts to parse the JSON string natively, falling back to
<a name="line91"></a> * {@code goog.json.unsafeParse} if unsuccessful.
<a name="line92"></a> * @param {string} jsonString JSON string to parse.
<a name="line93"></a> * @return {!Object} Resulting JSON object.
<a name="line94"></a> */
<a name="line95"></a>goog.json.hybrid.unsafeParse = function(jsonString) {
<a name="line96"></a>  return goog.json.hybrid.parse_(jsonString, goog.json.unsafeParse);
<a name="line97"></a>};
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